Sectional row boat



April 17, 1956 o. A. MULLER SECTIONAL ROW BOAT Filed April 1, 1953INVENTQR: dskaz A. MuuiR 2* -W Al-Fo may United States Patent 9. W

SECTIONAL ROW BOAT Oskar A. Miiller, Zurich, Switzerland ApplicationApril 1, 1953, Serial No. 346,170

Claims priority, application Germany April 3, 1952 1 Claim. (Cl. 9-2)The present invention relates to sectional row boats.

There are disjoinable row boats known, which are composed of a timber ormetal skeleton covered by a watertight textile or rubber cover. Theseknown boats have the disadvantage that their assembling is ratherwearisome and their security in use is questionable due to the fact thatsuch thin covers are very easily damaged.

There are further also disjoinable all-metal boats known, which arecomposed of several sections connected to each other. However, in theseknown metal boats the sections are not separated from each other byintermediate walls so that the points between the sections must be madetight. Thus, these boats are very complicated in construction, Wearisomein assembling and the parts and sections assembled by packings, screws,connecting cables and folds are easily damaged in use so that theseconstructions did not prove good.

In other known boats, of the type disjoinable in longitudinal directionand the individual sections of which are provided with watertightclosing walls, the separate sections are connected to each other bymeans such as pins, bolts, plugs, hinges, connecting ropes or cables, orthe bow and stern sections cannot be formed as buoyant bodies, or thetop cannot be constructed as simply as would be desirable, so that thistype of disjoinable boats has also not been successful.

In contradistinction thereto the sectional row boat according to thepresent invention comprises at least a trough-like seating sectionformed of sheet metal, which seating section is adapted to bedisjoinably connected by means of denticulations with a bow and with astern section formed as buoyant bodies, whereby the largest boat sectionis adapted to contain, when the boat is disjoined, all other sections ofthe boat. The connecting means are similar for all boat sections. Thusthere may be two seating sections of difierent dimensions provided,whereby such a double-seater boat is assembled by connecting the twoseating sections with each other and securing the bow section to thefree end of the smaller seating section and the stern section to thelarger seating section. 7

By assembling with two or three suitably dimensioned seating sections athreeor four-seater boat may be provided. All elements necessary for theassembling are preferably fixedly or movably connected with thecorresponding sections of the boats in order to prevent loss of suchsmaller parts. The boat according to the invention does not need anytools or other auxiliary means for its assembling or disjoining.

An embodiment of a sectional row boat according to the invention isrepresented by way of example, in the accompanying drawings, in which:

Fig. 1 is a plan view of a double-seater boat,

2,741,782 Patented Ape. 17,1956

2. Fig. 2 is asectional view alongthe line 2-4 in Fig. 1, Fig. 3 is aplan. view of. the disjoinedboat with the separate sections adaptedinthe largest section and the tops removed,

Fig. 4 is a section along the line 4-4 of Fig. 2, and

Fig. 5 is a section corresponding to the one of Fig. 4 but through avariant.

In the drawings the reference numeral 1 designates the smaller frontseating section, 2 the rear seating section of larger dimensions, 3 thebow section and 4 the stern section of the boat. All sections are formedof sheet metal. The bow and stern sections are provided with openingsnot shown which may be tightly closed so that these two sections formair-tight buoyant bodies, while the intermediately disposed seatingsections 1 and 2 are trough-shaped. The adjacent walls of the sections1-4 are provided with recesses 5 and protrusions 6 respectively, adaptedto engage each other when the boat is assembled. By this dovetailconnection vertical relative displacement of the sections as well asdeflection of the keel in longitudinal direction of the boat isprevented. The separate sections of the boat are disconnectably securedto each other by means of tighteners 7 of known construction. In orderto protect the seating sections 1 and 2 from incoming water thesesections are covered with two cover sheets 8, adapted to engage eachwith a marginal bent portion 10 a fold 11 formed at the upper rim of thetrough-like seating sections 1 and 2 respectively. The cover sheets 8are thus firmly held in position by means of tighteners 9 similar to thetighteners 7 used for the connection of the sections with each other,thus forming the top of the seating sections 1 and 2. Cutouts in thecover sheets 8 provide, when the boat is assembled, openings 12, 13 forthe passengers. If necessary a protection cover may be adapted on thetop of the seating sections as is already used in heretofore knowncanoes. It is understood that the cooperating parts of the tightenersare fixed to the corresponding parts of the boat so that they cannot belost.

In order to increase'the stability of the boat the separate seatingsections may be provided with protruding portions 1a (Fig. 5) disposedbelow the water line, which portions, when the boat is inclined, causean increased buoyancy relatively distant from the median line of theboat, which efiect is the same as the one obtained in cantilever boatsand moreover prevents the boat from deviation from the straight course.

After the boat has been taken apart by releasing the tighteners 7, 9 thebow and stern sections 3, 4 are laid into thesmaller seating section 1,as shown in Fig. 3. The latter fits into the larger seating section "2,whereafter the latter is covered by its two cover sheets 8. Thereby acompact unit for transportation on land of the complete boat isprovided, the overall dimensions of said unit being those of the largerseating section 2.

What I claim is:

In a sectional row boat having a plurality of sections longitudinallyalined with their adjacent ends joined by abutting walls, incombination: at least one trough-like seating section having a foldprovided on its upper lateral rims, two cover sheets having bent-01fedge portions adapted to engage said lateral folds, a first set oftighteners provided on said sheets for firmly connecting said two sheetswith their bent-off portions engaged in the folds, a bow and a sternsection forming buoyant bodies, protrusions provided on one of theabutting walls and adapted to engage recesses provided on the other ofthe abutting walls for preventing vertical relative displacement of thesections, a second set'of tighteners secured to said sections forconnecting said'sections together, the sections being progressivelysmaller so that the largest section of the boat may contain allremainder sections of the boat when the latter is taken apart to providea cornpact unit for transportation purposes.

520,823 Heimbaugh June 5, 1894 4 Kilgore July 5, 1904 Reese Nov. 18,1930 Wood Mar. 14, 1933 Cormier June 27, 1933 Sobieralski Feb. 27, 1934Tomassi Aug. 20, 1940 House June 22, 1948 FOREIGN PATENTS Great BritainAug. 11, 1911 France Apr. 25, 1932

